Question about JVC AV-48WP30 48" Rear Projection Television

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JVC I ART

TV WAS PLAYING AND THE TV WENT DARK MADED A FUNNY SOUND AND SHUT OFF. AND WILL NOT COME BACK ON .

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Funny sounds tend to lead to a short of one or more componets most likely the HOT and FBT I also would not rule out the convergance IC's. this repair should be left to the repair gods.

Posted on Jan 01, 2008

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Posted on Jan 02, 2017

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Good Day sir/maam, my guess are several, lets start at the common ones, make sure that the AV cables are good. you can try swapping cables to make sure. If possible try the cables on other units such as any DVD player. There is a possibility that the sound jack, is bad, try to vibrate the plugged cable, and see if the sound goes back if it does, you need to solder the terminals. Worse is the Amplifier section of the TV. does the TV sound normal on broadcast? check the volume, mute. or the TV setup. hope this helps. if you have additional info please feel free to ask again, let me know any progress. thanks

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Change the channel down past 02 until you get to INPUT 1, AUX, INPUT 2, ect. One of these will show the picture. Check your wiring as well. The RCA (audio/video) jacks must go from the OUT connectors from the DVD to the IN connectors for Video or Input 1 or 2. I know this sounds remedial but I get them mixed up when in a hurry since it is usually dark and they are hard to see. Good luck and thanks for allowing me to help you. Please rate me if this was helpful.

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Sorry, this has no easy fix. The good news is you do not need an LCD Panel. The bad news is the Video Processor has a problem.
This TV has x3 Boards. The one you should replace first is the one in the middle. If this doesn't fix it, try the one on the right. The Part #s are on the Boards if you wanna try ebay.

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1 Answer

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1. White lines spreading is probably a video process problem. I think this TV has 3 Boards inside. Middle one is most likely suspect followed by the one on the Right

2. HDMI input not working is because they were turned OFF. JVC TV's have a sensor that will shut off the HDMI if the TV's back cover is removed. This must be reset in the Service Menu.

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1 Answer

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your tv is under shutdown state, there is a protecting circuit that prevent the tv from turning on when there is a short

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